The subject of the master’s thesis is the stability of the point KOPE, which is one of the sixteen stations in the SIGNAL network and one of the six points of zero order forming the national zero-order geodetic network. Considering that the GNSS receiver is mounted on a metal pole supported by metal legs made of a different material, we were interested to see whether the expansion and contraction of the structure material due to heating affects the change in KOPE point. The point is positioned next to the ex- Harbourmaster’s Office in Koper as part of the tide gauge station. The measurements were performed at two different time intervals. First measurements were executed using only classical terrestrial method, the second ones were additionally measured with GNSS measurement method, which was added to the classical measurement in order to identify changes in the position of the KOPE point due to the movement of the structure. The research’s outcome is the understanding that the point KOPE is not stable. The measured displacements ranged from -5,0 mm to 0,01 mm in the first measurements and from -6,7 mm to 1,5 mm in the second measurements. The results raise the question whether the point KOPE is suitable for high-precision measurements, such as the static GNSS method.